> How many customers do you expect to be running on Duo for the first year of its existence? I’d be surprised if it was >0.01% for anyone.

How do you figure? Assume the average Apple cell phone replacement cycle is somewhere between 3 and 4 years. At the longer end, you’d need the sell-through rate of the Duo compared to other phones to be less than 0.04% to hit your number. We know from the Mini and other phones that Apple tends to avoid designs that it expects to have less than a 5% sell rate, two orders of magnitude higher. Even if you assume they’re aiming for 5% of dollars instead of units, and you take into account the non-Apple market (which certainly should not be unit-weighted for folks thinking about app revenue), you’re off by well over an order of magnitude.

> some of the bigger apps to switch to the Liquid Glass

Interestingly, Instagram decided to implement a custom liquid-glass like tab bar which surely now turns to be a PITA.

It’s really interesting to note how the bigger apps deferred adopting Liquid Glass altogether until iOS 26 is out for almost a year. Do most developers making large apps also loathe it? Do they have in-house designers telling them not to adopt it?

“Here is your iOS app migrated to Surface Duo…”

Tongue half in cheek, my point is that agents may be unreliable with fresh libraries.

It looks like there are some fun edge cases too:

> A reserved region can be active or inactive. For example, a reserved region that represents the fold is active when iPhone Duo is partially open, but inactive when it is fully open.

source: https://developer.apple.com/documentation/technologyoverview...

Yeah, good luck with that.

Instagram released a Reels-first iPad app that is much, much worse than the old iPhone-on-iPad app.

To me that's said more about Instagram than the feasibility of building an app for a tablet.

This is the first time we get an iPhone skew that is significantly different and with no sales track record.

For instance, very few company bothered to do anything for the Vision Pro. Now we'll see if Google or Microsoft for instance see the iPhone Duo as a main line product or an exotic offshoot that needs to prove itself before any money is spent on it.

In plenty of big companies one month is not even enough time to get a new release into production, let alone test and fix the layouts.

> historically

Depends on how far back you go.

Apple's current docs suck, and they have, for a long time (SwiftUI was so bad, that someone came up with this[0], and it was a lifesaver).

But I'm old enough to remember Inside Macintosh[1], and that was a thing of beauty.

Apple used to take technical documentation very seriously. Many of their technical writers had better tech chops, than the engineers making the stuff they wrote about.

[0] https://swiftui-lab.com

[1] https://vintageapple.org/inside_o/

Version 5 is when it'll be actually competitive.

The small screen is so small they had to move controls to the right, I would expect glitches because of that, especially for custom controls.

Apps not rebuilt with the latest SDK will display in pillar-boxes mode, centred on the screen.

But will you gain anything by building for it? Will you see noticeably more users or people choosing another alternative because you didn't specifically building the app for Duo? At least if it doesn't outright break.

It is exotic, and bring only a little to the table for a stiff price increase.

The form factor of Vision Pro has also been validated for a decade from other manufacturers.

And that means nothing. Because other manufacturers are not doing well either.

> It is indeed a niche product.

It's worth noting that "niche" in this case means ~10M in its first year, comparted to an estimated 250M Apple smartphone shipments in 2027. So far, Apple has sold ~600K Vision Pro in total.

Also, supporting Duo is not an enormous lift if you're already supporting resizable windows, as developers are required to do for OS 27.

I know exactly one person who has a foldable phone and I live in sf. I’ve never even considered getting one and I like new tech.

I’m not doubting that there’s demand for it but I wonder who/where?

The price, hardware, and market was not there for the Vision Pro. There was no reason to buy a VR headset that couldn’t play games.

> Its price reflects the sales expectations of Apple.

People famously said that of the first iPhone, expensive at the time.

Then about the $1k iPhone X.

Apple have made phones a fashion accessory and status symbol. I won’t be surprised if the Duo sells extreme well, even by iPhone standards.

That seems like a tough road. They've never been able to enforce that iPhone app makers build an iPad-compatible version or vice versa, and this looks exactly like that scenario.

What is your point? That they eventually released something? The simulator came out today... on Friday afternoon lol

And when did Apple decide to grace us with tools to support the Duo? Yeah, 3 hours ago. This should've been out in June so they can also get the feedback about all the silly design choices the Duo brings (and the bugs in that simulator). Too bad I can't just send them an invoice for all the wasted time.